Victron Energy AC Current sensor - single phase - max 40AAC Current sensor single phase max 40A The AC Current sensor is a simple external current sensor used to measure AC Current, Power (VA) and calculate energy of a PV Inverter connected to the AC input or output of a Multi or Quattro. These values can then be displayed and sent to the VRM website by the Color Control. The two measurement wires can be connected to the AUX and or temperature sense input of a Multi or Quattro. Brand: Victron Energy Height